# num
# 变量a==》要转的类型type(a)
a = 23
b = str(a)
print(b)
c = 3.45
print(int(c))

# bool   and  or not
c = 111
print(bool(c))
print(a == 22 or c == 34)
print(a == 22 and c == 34)
print(not a == 22)





